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LUXEMBOURG -- Bojana Jovanovski of Serbia advanced to the quarterfinals of the Luxembourg Open by beating Su-Wei Hsieh of Taiwan 6-1, 6-4 on Wednesday.
The 38th-ranked Jovanovski has yet to lose a set in the tournament. She'll face either top-seeded Caroline Wozniacki of Denmark or Monica Niculescu of Romania.
Also, Andrea Petkovic of Germany rallied past seventh-seeded Eugenie Bouchard of Canada 2-6, 7-5, 6-1. Tereza Smitkova of the Czech Republic defeated Kristina Mladenovic of France 7-5, 6-1.